MR16 LED Bulbs 4Watt MR16 GU5.3 Base 12V 4W LED Spotlight Bulb for Landscape Lighting,Equivalent to 50 Watt Halogen,Cool White,Pack of 8 - - Amazon.com
Source PASS NEW ERP B2B China Plastic&Aluminum 3000-7000K 180 Angle Livarno Lux Led Lamp on m.alibaba.com
Dimmable 4W GU10 Livarno Lux LED spotlight bulbs at Lidl – Bob's Shack